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Signaling LDP Label Advertisement Completion (RFC5919) Disclosure Number: IPCOM000198797D
Original Publication Date: 2010-Aug-01
Included in the Prior Art Database: 2010-Aug-17
Document File: 18 page(s) / 19K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Asati: AUTHOR [+4]


There are situations following LDP session establishment where it would be useful for an LDP speaker to know when its peer has advertised all of the labels from its Label Information Base (LIB). For example, when an LDP speaker is using LDP-IGP synchronization procedures [RFC5443], it would be useful for the speaker to know when its peer has completed advertisement of its IP label bindings. Similarly, after an LDP session is re-established when LDP Graceful Restart [RFC3478] is in effect, it would be helpful for each peer to signal the other after it has advertised all its label bindings.

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Internet Engineering Task Force (IETF)                          R. Asati Request for Comments: 5919                                  P. Mohapatra Category: Standards Track                                  Cisco Systems ISSN: 2070-1721                                                  E. Chen                                                      Huawei Technologies                                                                B. Thomas                                                              August 2010

               Signaling LDP Label Advertisement Completion


   There are situations following Label Distribution Protocol (LDP)    session establishment where it would be useful for an LDP speaker to    know when its peer has advertised all of its labels.  The LDP    specification provides no mechanism for an LDP speaker to notify a    peer when it has completed its initial label advertisements to that    peer.  This document specifies means for an LDP speaker to signal    completion of its initial label advertisements following session    establishment.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Further information on    Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

 Asati, et al.                Standards Track                    [Page 1]
 RFC 5919      Signaling LDP Label Advertisement Completion   August 2010

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